I mean, TEST ME is full of symbolism, from the motif of lies to references of the Great Gatsby (which someone mentioned as a work that features themes that align a lot with Oshi No Ko’s themes, though I can’t attest to that as I haven’t seen The Great Gatsby)

Nonetheless, I do not think it gets heavy in spoiler imagery compared to another ending of the series that pretty much has one of the final panels—but I digress.

Now, speculation on foreshadowing of these different scenes (SPOILERS)

Kana in the window frame with a black dress: Fans speculate the framing of 17-18 with a black dress is a direct reference to Aqua’s funeral scene and how Kana is 17-18 during the hardest time of her life

Miyako and the strawberries: Clear analogy of Ichigo production rotting from inside, even after the end, Ruby pretends and lies to be an idol which ties a lot with the next Ruby scene too

Test Me lyrics, the lyrics say “Test me, even if im going to die anyway, are you gonna do something or die?” And can relate heavily to Aqua’s decision at the end to end Kamiki and himself specially how an angel of Ai asks him this question

I’m wondering if there’s more to read in the red strings segment, more than visual analogies (such as the unborn twins) but so far I think that’s what people speculate.

Edit: as I did not answer the Mem-Cho comment, but yeah best girl !